Yes, this is basically what's behind the label JKD. I did JKD for 1 month only (then the school closed for lack of students) combined with kali/escrima, it was a nice style, a sort of MMA geared for self-defence (not sport competitions) basically they were teaching, (in that first months), kicking and punching basics, escrima basics, case study self-defence. About lineage the instructor was part of an organization (AKEA) recognised by Dan Inosanto (it was started by an italian Inosanto disciple), who is well entitled to teach JKD I think.